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Near-threshold high spin amplification in a 1300 nm GaInNAs spin laser

Cemlyn, Benjamin and Adams, Mike J and Harbord, Edmund and Li, Nianqiang and Henning, Ian and Oulton, Ruth and Guina, Mircea and Korpijärvi, Ville-Markus (2018) 'Near-threshold high spin amplification in a 1300 nm GaInNAs spin laser.' Semiconductor Science and Technology, 33. ISSN 0268-1242

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Abstract

Using continuous-wave optical pumping of a spin-VCSEL at room temperature, we find high spin amplification of the pump close to threshold within the communications wavelength window, here at 1300 nm. This facilitates a strong switch from left to right circularly polarised light emission, which has potential applications in polarisation encoding for data communications. We use a simple spin flip model to fit the experimental results and discuss the VCSEL parameters that affect this amplification.

Item Type: Article
Uncontrolled Keywords: spin laser, spin VCSEL, spin amplification
Subjects: Q Science > QC Physics
Divisions: Faculty of Science and Health > Computer Science and Electronic Engineering, School of
Faculty of Science and Health > Life Sciences, School of
Depositing User: Elements
Date Deposited: 10 Aug 2018 11:40
Last Modified: 22 Nov 2019 22:15
URI: http://repository.essex.ac.uk/id/eprint/22818

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